Shedding mechanism for loom-harness



E. EWART. SHEDDING MECHANISM FOR LOOM HARNESS.

- APPLICATION FILED SEPT.23. 1918.

' Patented Mar. 9,1920.

2 SHEETS-SHEET! amuwboz ,Z'Emarf i "EDWARD/3W s 1R} as ime9mpwi *1"'SHEDDINGil lficnAlwg poofigg y Twill whom z't may concern. 7 p

Be it known that I, Blows-in)i liivan'iga:ci-ti- ;zen-of the' UnitedStates-residing at'Moosup,

in-thecou-nty-of Windham and State of Gori- :necticut, have inventedcerta n -=newand use- -ful Improvements in Shedding Mechanism forLoom-Harness o-f which tlie #following is a specification. referencebeing h-ad to the accompanying drawings.

This invent on relates to an improved shedding mechanism for loomharnesses, and has for --its primary object :to provide simple andeasily operablemeans for opening and closingthe harness shed.

It isamore particular object of theiinven- -tion to provide adevicef-forthe above purpose embodying a plurality of jacks arparativelysmall cost and'readily applied to rarged above and below the harness andoperatively connected'thereto,'and a singlecon- 20 trol :lever connectedto thetwo series of j acks for simultaneouslv actuating the same *toraise or lower the harness.

- And it is a further general-object of my. invention to provideamechanism for openating'loom harnesses-which consists of relatively fewparts-not liable to get out o'forder, and which can bemanufactured at,comthe ordinary loom.

\Vith the aboveandother objects vin view, the invention consistsintheimprovedconstruction, combination and relat ve arrangement of theseveral partsas will be hereinafter more fully described, subsequentlyclaimed and illustrated in'the accompanying drawings in which's milarreference characters, designate corresponding parts l-throughout theseveral views, and wherein:

Figure 1is a side-elevation, partly diagrammatic,illustrating thepreferred embodiment of the harnessoperatingmechanism and showingtheharnessin itslowered position; V

F'g, 2 is -a similar view illustrating the relative positions'of thejacks and the control lever when the harness ha's beenra'ised' to openthe shed;

Figs. 3 and 4 are detailperspective views of one pair of the jackmembers connected to the harness;

Fig. 5 is a similar view of the jack for actuating the lower pair ofharness jacks; and

Fig. 6 is a perspective view of the control lever. i

Referring in detail to the drawings, 5.

I ,s p eci fi cationof LettersI-atent.

in its operative position upon the loom in any conventional manner.

6 and 7 respectively indicate upper and lowerjack members of-similarform,each of said members having two arms disposed at :obtuse anglesrelative to each other. *These members at the juncture ofstheir-arms are.pivotally mounted, as at 8 and 9 respect vely.

JThe'jac-ks 6 and I7 arearranged adjacent to one end oftheiloom:harness, while atthe other end thereof, l a second pair of jacks,designated- 1.0 and "11 respectively, are an ranged above and-below theharness. Each of :the latter jacks has. three-arms which m neame ',nueationflfiiecSe te ber 23,1913.1' seria1m.e55,aae; 1 i

des gnates the looni harness, which be 4 radiate from a common centerorhub, at]

vwhich point the jacks are pivotally mounted :or supported, asshownat'l2 311(11131ESP tively.

, flnspaced relation tothe lower jacks and l 11, :an: additional jack 14is pivotally mount ed, as'at 1'5, 'saidlatter jack being in vthe formof. a'bell crank lever having its arms extending at right-angles fromthe ;pivot.

' The arms of each jack above referred to at their out erendsarerelatively wide and'have rounded end edges. ind catediat :1 6,-which:merge into onelongitudinal side edgeot the arm. In the otherlongitudinal edqe of'the t'jack arm. a notch orrecess 17 is for-medktoreceive a flat link or stirrup 18. Theroundred end ed es of the'jackarms .serveto prevent the link or stirrup from accidentally jarringoff-of the end of the arm.

To the upper and lower-edges of the harness frame, in spaced relation';to each .end thereof, the usual hooks 19 are -.secured'. Jack rods 20have loops formedon one :of

their ends for engagement in the hooks lQ, q I while the otherendsofvsaid jac'kflrodsare engagedwith one of the stirrups .18iof;each

Iot the ja ck members 6, .7, 10 and :11 respec tively; The other arm ofeachjackmember 6 -and-7- isconnected to another of :the arms 21. theends of whicharesuitab1v engaged I formed with a nair of arms extendingat an obtuse an le relative to'each other, saidqconjuncture ofsaid arms,as at 24. Each of trol lever being piv'otally mounted at the said" leverarms is provided in oneof its. edges with a series of spaced notches 25.in.

one of which a strap link or stirrup 26 is adapted to'be engaged,QThest-irrup on one lever arm 23 1s"connected.by the rod 27 to theremaining arm of theupper jack mem "ber 10, whilethe other lever arm 23is si'mi- "larly connected by the rod 28 to the other arm of the-jackmember 14.

: In the lowered position of the loom har V nes s, one arm of thecontrol lever 23 is disposed in a horizontal position from thepivot 724, while the other arm extends upwardly at an oblique anglewithrelationthereto. ,In 'order to raise the loom harness toopen the shed,thelever 23 is actuated. the horizontal arm moving downwardly, and theother arm to a substantially verticalposition. In this -movement of thecontrol leventhe arms of the acks swing in arcuate paths and through themedium of the connections 27 and 21 between the control lever and theupper jacks '6 andlO. the armsof'said jacks which are connected to theharness frame "swing -up wardlyn The jack'l' being simultaneouslyactuatedthrough the medium of therod 28 connected to the control lever,and said jackmemberbemg in turn operatively connected to the jacks 7 and11 by the rods 21 and 22,

said latter jacks are also actuated and the arms thereof which areconnected to the barness frame." are also caused to move up wardly.Thus, there will be no resistance to the upward movement of the harness.This opening of the harness shed necessitatesa vertical movement ofthe'harness of only about four inches, and by-mea'ns of my improvedvarrangement of the'jack; members i and their connections with thecontrol lever,

this movement may be easily and quickly ef -fected. As will be readilyunderstood the stood. My improved harness operating mechanism is verysimple in its construct-ion and, therefore,-not liable to get outoi'order; butwill be positive and reliable in practical operation. Also,the construction and-rela-' tive arrangement of the several jack membersis su h'as to enable the device to be readily applied to use upon theordinary fairly embodied within the spirit loom without necessitatingany modifications in the construction. thereoi'orin the mountmg andarrangement of the loom harness. \Vhile Iliave herein specifi'caldescribed the preferred operating connect ion between the several jackmembers and between the 'jack members and the loomhnruess, 1t'isapparent that the nventlon 1s not limited in its utility to such strutural details. The device is likewise susceptible of many modifications-1nthe form," construction and arrangement of v theseveral jackmembersandthe control level", and it isiaccordingly to be understoodthatRI also reserve the prlvilege of adopting all such legitimate;changes as may be and scope of the invention as claimed. i V J I claimlarly disposed arms and the otherjack havlng three angularly disposedarms, operative is In combination with a loom harness, a I pair ofqa'ksrotatably' mounted above the harness one of the acks havin two an ns l hn connections between one of the pairsof the three-arm jackand one ofthe arms of the two-arm jack, a pair of jacks disposed "below theharness, ,o'neof the jacks having two angularly disposed arms and theother having three angularly disposed arms, the jacks having two armsbeing disposed in vertical 'alinement with each other, an operativecon-,nection betiveen'one of thearms of the lower three-arm jack and one ofthe'armsot' the lower two-arm jack, operative" connertions vbetween oneof the-arms of each threej-arm jack and the corresponding end of theloom harness, operative connections between one of the arms of eachtwo-arm jack and the additional jack having angularly disposed arms, onearm of thelatter jack being con nected to one arm of the lowerthree-arm'jack, a pivotally mounted controllever-having angular disposed arms,anoperative connection between one of the-lever arms, and anarm on thelast named jack and'.be'tween the other of the arms of thecontrol leverand one arm of the three-arm 3 upper jack, whereby all of the jacks aresimultaneously actuated by the oscillation of the lever to zalternatelyraise and lower the harness;

In testimony whereof I hereunto my signature in the presence'of twowitnesses. v, 'EDWARDEIVART, Witnessesr 1 1 i f Gnome W. TAYL0R,-MATTHEW F. LYNCH. I

corresponding end of the loom harness, an,

